The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 1976
Filed:
May. 12, 1975
Applicant:
Inventor:
Daniel Edwin Floryan, Glenmont, NY (US);
Assignee:
General Electric, Pittsfield, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
260 / ;
Abstract
This invention provides a novel method for the removal of the catalyst from a polyphenylene oxide polymerization mixture. The novel method is based on the discovery that ammonia and carbon dioxide may be employed to extract the catalyst from a polyphenylene ether reaction mixture.